Perhaps the pressure is getting to him. On Sunday, Joe Biden snapped at a voter in New Hampshire, calling him (sic: her) a “lying, dog-faced pony soldier.” The dust-up came after the voter asked Biden, “How do you explain the performance in Iowa and why should the voters believe that you can win a national election?" "You ever been to a caucus?" Biden replied. After the voter said she indeed had attended a caucus, Biden shot back: "No you haven’t. You’re a lying dog-faced pony soldier." "You gotta be honest,” he continued. “I’m gonna be honest with you. It was...